abstract
- © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.This work presents the construction and instrumentation of an experimental prototype of an anaerobic bioreactor for the fermentation of the organic fraction of municipal solid waste from the Guadalajara Metropolitan Zone to produce biogas. The prototype has a built-in temperature, redox potential, and pH control system to monitor the quality of the biogas obtained by anaerobic fermentation. This work is carried out within the framework of the project ¿quality and quantity of biogas and OFMSW digestate in the Guadalajara Metropolitan Zone, evaluation of scenarios.¿ A stainless-steel temperature probe and proportional water heating and recirculation system were added to the reactor to achieve temperature control. As a digital control system, the Logger Lite platform was used through the LabQuest Mini interface, whose operating points are configured to work in mesophilic temperature ranges due to the established fermentation time. A pH sensor and an ORP sensor were implemented to keep the variables of the leachates produced during fermentation under control. In addition, the bioreactor has a tap at the bottom to extract the leachate produced during anaerobic fermentation. The estimated methane production that would be obtained if the bioreactor operated with 4.4 kg of organic fraction of urban solid waste obtained from a student residence located in the center of Guadalajara Jalisco was calculated, obtaining a methane production of approximately 29.93 liters of methane in an operating time of 15.81 days.